quantrs2-device 0.1.3

//! Syndrome Detection and Pattern Recognition for QEC

use serde::{Deserialize, Serialize};
use std::collections::HashMap;
use std::time::Duration;

/// Syndrome detection configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SyndromeDetectionConfig {
    /// Enable parallel detection
    pub enable_parallel_detection: bool,
    /// Number of detection rounds
    pub detection_rounds: usize,
    /// Stabilizer measurement shots
    pub stabilizer_measurement_shots: usize,
    /// Enable syndrome validation
    pub enable_syndrome_validation: bool,
    /// Validation threshold
    pub validation_threshold: f64,
    /// Enable error correlation analysis
    pub enable_error_correlation: bool,
    /// Enable syndrome detection
    pub enable_detection: bool,
    /// Detection frequency
    pub detection_frequency: f64,
    /// Detection methods
    pub detection_methods: Vec<SyndromeDetectionMethod>,
    /// Error pattern recognition
    pub pattern_recognition: PatternRecognitionConfig,
    /// Statistical analysis
    pub statistical_analysis: SyndromeStatisticsConfig,
}

/// Syndrome detection methods
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum SyndromeDetectionMethod {
    /// Standard stabilizer measurements
    StandardStabilizer,
    /// Fast syndrome extraction
    FastExtraction,
    /// Adaptive syndrome measurement
    AdaptiveMeasurement,
    /// ML-based syndrome prediction
    MLPrediction,
    /// Compressed sensing
    CompressedSensing,
}

/// Pattern recognition configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct PatternRecognitionConfig {
    /// Enable pattern recognition
    pub enable_recognition: bool,
    /// Recognition algorithms
    pub algorithms: Vec<PatternRecognitionAlgorithm>,
    /// Training data requirements
    pub training_config: PatternTrainingConfig,
    /// Real-time adaptation
    pub real_time_adaptation: bool,
}

/// Pattern recognition algorithms
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum PatternRecognitionAlgorithm {
    NeuralNetwork,
    SupportVectorMachine,
    RandomForest,
    DeepLearning,
    ConvolutionalNN,
    RecurrentNN,
    Custom(String),
}

/// Pattern training configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct PatternTrainingConfig {
    /// Training data size
    pub training_size: usize,
    /// Validation split
    pub validation_split: f64,
    /// Training epochs
    pub epochs: usize,
    /// Learning rate
    pub learning_rate: f64,
    /// Batch size
    pub batch_size: usize,
}

/// Syndrome statistics configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SyndromeStatisticsConfig {
    /// Enable statistical analysis
    pub enable_statistics: bool,
    /// Statistical methods
    pub methods: Vec<StatisticalMethod>,
    /// Confidence level
    pub confidence_level: f64,
    /// Historical data retention
    pub data_retention_days: u32,
}

/// Statistical methods for syndrome analysis
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum StatisticalMethod {
    HypothesisTesting,
    DistributionFitting,
    CorrelationAnalysis,
    TimeSeriesAnalysis,
    AnomalyDetection,
    ClusterAnalysis,
}

/// Fast syndrome extraction configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct FastExtractionConfig {
    /// Extraction algorithm
    pub algorithm: FastExtractionAlgorithm,
    /// Parallel processing
    pub parallel_processing: ParallelProcessingConfig,
    /// Resource optimization
    pub resource_optimization: ResourceOptimizationConfig,
    /// Quality control
    pub quality_control: QualityControlConfig,
}

/// Fast extraction algorithms
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum FastExtractionAlgorithm {
    ParallelStabilizer,
    PipelinedMeasurement,
    CompressedSensing,
    AdaptiveSampling,
    HierarchicalExtraction,
}

/// Parallel processing configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ParallelProcessingConfig {
    /// Number of parallel threads
    pub num_threads: usize,
    /// Load balancing strategy
    pub load_balancing: LoadBalancingStrategy,
    /// Synchronization method
    pub synchronization: SynchronizationMethod,
}

/// Load balancing strategies
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum LoadBalancingStrategy {
    RoundRobin,
    WorkStealing,
    DynamicAssignment,
    PerformanceBased,
}

/// Synchronization methods
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum SynchronizationMethod {
    Barrier,
    LockFree,
    MessagePassing,
    SharedMemory,
}

/// Resource optimization configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ResourceOptimizationConfig {
    /// Memory optimization
    pub memory_optimization: MemoryOptimizationConfig,
    /// CPU optimization
    pub cpu_optimization: CPUOptimizationConfig,
    /// I/O optimization
    pub io_optimization: IOOptimizationConfig,
}

/// Memory optimization configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct MemoryOptimizationConfig {
    /// Memory pooling
    pub enable_pooling: bool,
    /// Cache optimization
    pub cache_optimization: CacheOptimizationConfig,
    /// Memory compression
    pub compression: CompressionConfig,
}

/// Cache optimization configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CacheOptimizationConfig {
    /// Cache size
    pub cache_size: usize,
    /// Cache eviction policy
    pub eviction_policy: CacheEvictionPolicy,
    /// Prefetching strategy
    pub prefetching: PrefetchingStrategy,
}

/// Cache eviction policies
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum CacheEvictionPolicy {
    LRU,
    LFU,
    FIFO,
    Random,
    Adaptive,
}

/// Prefetching strategies
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum PrefetchingStrategy {
    None,
    Sequential,
    Stride,
    Pattern,
    Adaptive,
}

/// Compression configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CompressionConfig {
    /// Enable compression
    pub enable_compression: bool,
    /// Compression algorithm
    pub algorithm: CompressionAlgorithm,
    /// Compression level
    pub compression_level: u8,
}

/// Compression algorithms
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum CompressionAlgorithm {
    LZ4,
    Zlib,
    Zstd,
    Custom(String),
}

/// CPU optimization configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CPUOptimizationConfig {
    /// Vectorization
    pub vectorization: VectorizationConfig,
    /// Instruction scheduling
    pub instruction_scheduling: bool,
    /// Branch prediction optimization
    pub branch_optimization: bool,
}

/// Vectorization configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct VectorizationConfig {
    /// Enable SIMD
    pub enable_simd: bool,
    /// Vector width
    pub vector_width: usize,
    /// Auto-vectorization hints
    pub auto_vectorization: bool,
}

/// I/O optimization configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct IOOptimizationConfig {
    /// Asynchronous I/O
    pub async_io: bool,
    /// Batching configuration
    pub batching: BatchingConfig,
    /// Buffer size
    pub buffer_size: usize,
}

/// Batching configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct BatchingConfig {
    /// Enable batching
    pub enable_batching: bool,
    /// Batch size
    pub batch_size: usize,
    /// Batch timeout
    pub batch_timeout: Duration,
}

/// Quality control configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct QualityControlConfig {
    /// Error checking
    pub error_checking: ErrorCheckingConfig,
    /// Validation methods
    pub validation: ValidationConfig,
    /// Monitoring
    pub monitoring: MonitoringConfig,
}

/// Error checking configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ErrorCheckingConfig {
    /// Enable checksums
    pub enable_checksums: bool,
    /// Redundancy checking
    pub redundancy_checking: bool,
    /// Error correction
    pub error_correction: bool,
}

/// Validation configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ValidationConfig {
    /// Cross-validation
    pub cross_validation: bool,
    /// Consistency checks
    pub consistency_checks: Vec<ConsistencyCheck>,
    /// Validation frequency
    pub validation_frequency: ValidationFrequency,
}

/// Consistency checks
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum ConsistencyCheck {
    SyndromeConsistency,
    StabilizerCommutation,
    LogicalOperatorConsistency,
    CodeDistanceVerification,
}

/// Validation frequency
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum ValidationFrequency {
    Always,
    Periodic(Duration),
    OnError,
    Manual,
}

/// Monitoring configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct MonitoringConfig {
    /// Performance monitoring
    pub performance_monitoring: PerformanceMonitoringConfig,
    /// Resource monitoring
    pub resource_monitoring: ResourceMonitoringConfig,
    /// Alert configuration
    pub alerts: AlertConfig,
}

/// Performance monitoring configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct PerformanceMonitoringConfig {
    /// Latency tracking
    pub latency_tracking: bool,
    /// Throughput monitoring
    pub throughput_monitoring: bool,
    /// Accuracy monitoring
    pub accuracy_monitoring: bool,
    /// Historical analysis
    pub historical_analysis: HistoricalAnalysisConfig,
}

/// Historical analysis configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct HistoricalAnalysisConfig {
    /// Enable historical analysis
    pub enable_analysis: bool,
    /// Data retention period
    pub retention_period: Duration,
    /// Analysis methods
    pub analysis_methods: Vec<AnalysisMethod>,
}

/// Analysis methods
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum AnalysisMethod {
    TrendAnalysis,
    SeasonalAnalysis,
    AnomalyDetection,
    PerformanceRegression,
    CapacityPlanning,
}

/// Resource monitoring configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ResourceMonitoringConfig {
    /// CPU monitoring
    pub cpu_monitoring: bool,
    /// Memory monitoring
    pub memory_monitoring: bool,
    /// I/O monitoring
    pub io_monitoring: bool,
    /// Network monitoring
    pub network_monitoring: bool,
}

/// Alert configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AlertConfig {
    /// Alert thresholds
    pub thresholds: HashMap<String, f64>,
    /// Alert channels
    pub channels: Vec<AlertChannel>,
    /// Escalation rules
    pub escalation: EscalationConfig,
}

/// Alert channels
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum AlertChannel {
    Email,
    SMS,
    Dashboard,
    Log,
    Webhook,
}

/// Escalation configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct EscalationConfig {
    /// Escalation levels
    pub levels: Vec<EscalationLevel>,
    /// Escalation timeouts
    pub timeouts: HashMap<String, Duration>,
}

/// Escalation level
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct EscalationLevel {
    /// Level name
    pub name: String,
    /// Threshold
    pub threshold: f64,
    /// Actions
    pub actions: Vec<EscalationAction>,
}

/// Escalation actions
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum EscalationAction {
    Notify,
    AutoRemediate,
    Manual,
    Shutdown,
}

/// Adaptive measurement configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AdaptiveMeasurementConfig {
    /// Adaptation strategy
    pub strategy: AdaptationStrategy,
    /// Learning configuration
    pub learning: LearningConfig,
    /// Feedback control
    pub feedback_control: FeedbackControlConfig,
}

/// Adaptation strategies
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum AdaptationStrategy {
    ErrorRateBased,
    PerformanceBased,
    ResourceBased,
    MLBased,
    HybridApproach,
}

/// Learning configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct LearningConfig {
    /// Learning algorithm
    pub algorithm: LearningAlgorithm,
    /// Learning rate
    pub learning_rate: f64,
    /// Training frequency
    pub training_frequency: Duration,
    /// Online learning
    pub online_learning: bool,
}

/// Learning algorithms
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum LearningAlgorithm {
    ReinforcementLearning,
    SupervisedLearning,
    UnsupervisedLearning,
    TransferLearning,
    MetaLearning,
}

/// Feedback control configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct FeedbackControlConfig {
    /// Control algorithm
    pub algorithm: ControlAlgorithm,
    /// Control parameters
    pub parameters: ControlParameters,
    /// Stability analysis
    pub stability_analysis: StabilityAnalysisConfig,
}

/// Control algorithms
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum ControlAlgorithm {
    PID,
    ModelPredictiveControl,
    AdaptiveControl,
    RobustControl,
    OptimalControl,
}

/// Control parameters
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ControlParameters {
    /// Proportional gain
    pub kp: f64,
    /// Integral gain
    pub ki: f64,
    /// Derivative gain
    pub kd: f64,
    /// Additional parameters
    pub additional_params: HashMap<String, f64>,
}

/// Stability analysis configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct StabilityAnalysisConfig {
    /// Enable stability analysis
    pub enable_analysis: bool,
    /// Analysis methods
    pub methods: Vec<StabilityMethod>,
    /// Stability criteria
    pub criteria: StabilityCriteria,
}

/// Stability analysis methods
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum StabilityMethod {
    LyapunovAnalysis,
    RouthHurwitz,
    NyquistCriterion,
    BodePlot,
    RootLocus,
}

/// Stability criteria
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct StabilityCriteria {
    /// Stability margin
    pub stability_margin: f64,
    /// Phase margin
    pub phase_margin: f64,
    /// Gain margin
    pub gain_margin: f64,
}

/// Compressed sensing configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CompressedSensingConfig {
    /// Sensing matrix configuration
    pub sensing_matrix: SensingMatrixConfig,
    /// Reconstruction algorithm
    pub reconstruction: ReconstructionConfig,
    /// Sparsity constraints
    pub sparsity: SparsityConfig,
}

/// Sensing matrix configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SensingMatrixConfig {
    /// Matrix type
    pub matrix_type: SensingMatrixType,
    /// Matrix dimensions
    pub dimensions: (usize, usize),
    /// Coherence parameters
    pub coherence: CoherenceConfig,
}

/// Types of sensing matrices
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum SensingMatrixType {
    Random,
    Structured,
    Circulant,
    Toeplitz,
    Fourier,
}

/// Coherence configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CoherenceConfig {
    /// Mutual coherence
    pub mutual_coherence: f64,
    /// Restricted isometry property
    pub rip_constant: f64,
    /// Coherence optimization
    pub optimization: bool,
}

/// Reconstruction configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ReconstructionConfig {
    /// Reconstruction algorithm
    pub algorithm: ReconstructionAlgorithm,
    /// Optimization parameters
    pub optimization_params: OptimizationParams,
    /// Convergence criteria
    pub convergence: ConvergenceConfig,
}

/// Reconstruction algorithms
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum ReconstructionAlgorithm {
    L1Minimization,
    OrthogonalMatchingPursuit,
    IterativeHardThresholding,
    CompressiveSamplingMatchingPursuit,
    SparseRecovery,
}

/// Optimization parameters
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct OptimizationParams {
    /// Regularization parameter
    pub lambda: f64,
    /// Step size
    pub step_size: f64,
    /// Maximum iterations
    pub max_iterations: usize,
}

/// Convergence configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ConvergenceConfig {
    /// Tolerance
    pub tolerance: f64,
    /// Convergence criteria
    pub criteria: ConvergenceCriteria,
    /// Early stopping
    pub early_stopping: bool,
}

/// Convergence criteria
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum ConvergenceCriteria {
    ResidualNorm,
    ObjectiveFunction,
    ParameterChange,
    GradientNorm,
}

/// Sparsity configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SparsityConfig {
    /// Sparsity level
    pub sparsity_level: f64,
    /// Sparsity pattern
    pub pattern: SparsityPattern,
    /// Adaptation
    pub adaptive_sparsity: bool,
}

/// Sparsity patterns
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum SparsityPattern {
    Random,
    Structured,
    Clustered,
    Hierarchical,
    Adaptive,
}